The Scratch can be increased in damage with the glove of knives so it will deal an additional 2 damage to all enemies.
this is super helpful when building a pacifist ring because scratching is not a weapon so it won't break the ring.
Nice. Does Rage increase Scratch damage as well? I'm thinking of Endless runs where enemy HP gets so bloated you'd need a higher damage output. IMO it'd still be cool if scratch was also affected by your max HP.